US5598763A - Flutter free piston ring assembly - Google Patents
Flutter free piston ring assembly Download PDFInfo
- Publication number
- US5598763A US5598763A US08/213,401 US21340194A US5598763A US 5598763 A US5598763 A US 5598763A US 21340194 A US21340194 A US 21340194A US 5598763 A US5598763 A US 5598763A
- Authority
- US
- United States
- Prior art keywords
- piston
- sealing element
- groove
- ring
- spacing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J9/00—Piston-rings, e.g. non-metallic piston-rings, seats therefor; Ring sealings of similar construction
- F16J9/12—Details
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J1/00—Pistons; Trunk pistons; Plungers
- F16J1/08—Constructional features providing for lubrication
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J9/00—Piston-rings, e.g. non-metallic piston-rings, seats therefor; Ring sealings of similar construction
- F16J9/12—Details
- F16J9/20—Rings with special cross-section; Oil-scraping rings
- F16J9/206—One-piece oil-scraping rings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J9/00—Piston-rings, e.g. non-metallic piston-rings, seats therefor; Ring sealings of similar construction
- F16J9/28—Piston-rings, e.g. non-metallic piston-rings, seats therefor; Ring sealings of similar construction of non-metals
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
- F02F3/00—Pistons
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05C—INDEXING SCHEME RELATING TO MATERIALS, MATERIAL PROPERTIES OR MATERIAL CHARACTERISTICS FOR MACHINES, ENGINES OR PUMPS OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES
- F05C2203/00—Non-metallic inorganic materials
- F05C2203/08—Ceramics; Oxides
- F05C2203/0865—Oxide ceramics
- F05C2203/0882—Carbon, e.g. graphite
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Pistons, Piston Rings, And Cylinders (AREA)
Abstract
Description
Claims (8)
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US08/213,401 US5598763A (en) | 1994-03-14 | 1994-03-14 | Flutter free piston ring assembly |
JP7017906A JPH07269709A (en) | 1994-03-14 | 1995-02-06 | Piston ring device |
DE19504803A DE19504803C2 (en) | 1994-03-14 | 1995-02-14 | Piston-piston ring assembly |
GB9503343A GB2287520B (en) | 1994-03-14 | 1995-02-21 | A piston ring assembly |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US08/213,401 US5598763A (en) | 1994-03-14 | 1994-03-14 | Flutter free piston ring assembly |
Publications (1)
Publication Number | Publication Date |
---|---|
US5598763A true US5598763A (en) | 1997-02-04 |
Family
ID=22794984
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US08/213,401 Expired - Lifetime US5598763A (en) | 1994-03-14 | 1994-03-14 | Flutter free piston ring assembly |
Country Status (4)
Country | Link |
---|---|
US (1) | US5598763A (en) |
JP (1) | JPH07269709A (en) |
DE (1) | DE19504803C2 (en) |
GB (1) | GB2287520B (en) |
Cited By (24)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2000052364A1 (en) * | 1999-02-27 | 2000-09-08 | Mahle Gmbh | Piston with at least one ring groove and at least one piston ring |
US6131503A (en) * | 1997-12-24 | 2000-10-17 | Sanshin Kogyo Kabushiki Kaisha | Piston ring assembly |
US6161468A (en) * | 1998-12-28 | 2000-12-19 | Dana Corporation | Four-piece oil seal |
US6206379B1 (en) * | 1997-03-14 | 2001-03-27 | Nippon Piston Ring Co., Ltd. | Second pressure ring for Al cylinders and its producing method |
US6338491B1 (en) * | 1998-10-21 | 2002-01-15 | Case Corporation | Rotary shaft seal |
US6425364B1 (en) * | 2000-11-28 | 2002-07-30 | Bombardier Motor Corporation Of America | Two-stroke direct fuel injected marine engine having anodized piston ring grooves |
US6478003B2 (en) * | 2000-08-24 | 2002-11-12 | Avl List Gmbh | Piston for a four-stroke internal combustion engine |
US20040119242A1 (en) * | 2002-12-18 | 2004-06-24 | Teikoku Piston Ring Co., Ltd. | Combined oil ring |
US20080127819A1 (en) * | 2004-11-30 | 2008-06-05 | Kurt Maier | Piston Ring Comprising a Coated Running Surface, and Coating Agent |
US20090020006A1 (en) * | 2007-07-19 | 2009-01-22 | Teikoku Piston Ring Co., Ltd. | Combination of a piston and a piston ring |
US7581734B1 (en) * | 2000-05-01 | 2009-09-01 | Schlumberger Technology Corporation | Peek coated seal surfaces |
US20110012313A1 (en) * | 2009-07-17 | 2011-01-20 | Gm Global Technology Operations, Inc. | Seal performance for hydrogen storage and supply systems |
US20110309586A1 (en) * | 2009-02-19 | 2011-12-22 | Peter-Klaus Esser | Compression piston ring |
US8090942B2 (en) | 2001-03-09 | 2012-01-03 | Pkware, Inc. | Method and system for asymmetrically encrypting .ZIP files |
US20150240945A1 (en) * | 2012-09-27 | 2015-08-27 | Mahle Metal Leve S/A | Three-piece oil ring for internal combustion engines, expanding element, and annular element |
US20160025219A1 (en) * | 2013-04-03 | 2016-01-28 | Ks Kolbenschmidt Gmbh | Machining Process for Trapezoid Rings With Small Axial Dimensions, Used in Pistons of Internal Combustion Engines |
US9476454B2 (en) | 2008-12-30 | 2016-10-25 | Federal-Mogul Wiesbaden Gmbh | Sliding element |
US20170016537A1 (en) * | 2014-03-04 | 2017-01-19 | Federal-Mogul Burscheid Gmbh | Oil scraper piston ring and method for producing an oil scraper piston ring |
US9551419B2 (en) | 2015-04-22 | 2017-01-24 | Federal-Mogul Corporation | Coated sliding element |
US20170261107A1 (en) * | 2016-03-10 | 2017-09-14 | General Electric Company | Seal ring assembly for a dynamoelectric machine |
US20170276246A1 (en) * | 2016-03-28 | 2017-09-28 | Electro-Motive Diesel, Inc. | Piston ring set for internal combustion engine and system and method thereof |
US10077838B2 (en) * | 2015-07-10 | 2018-09-18 | Ford Global Technologies, Llc | Piston ring configured to reduce friction |
WO2019032894A1 (en) * | 2017-08-09 | 2019-02-14 | Etagen, Inc. | Piston seal with solid lubricant applicator |
CN110312858A (en) * | 2017-02-16 | 2019-10-08 | 曼恩能源方案有限公司 | The cylinder of internal combustion engine |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10012619A1 (en) * | 2000-03-15 | 2001-09-27 | Federal Mogul Burscheid Gmbh | Steel piston ring alloy containing manganese, chromium, iron and other specified elements, is annealed and rapidly nitrided on mandrel before finishing |
DE102007057840A1 (en) * | 2007-11-30 | 2009-06-04 | Ks Kolbenschmidt Gmbh | Function-optimized design of the piston ring field area in steel pistons |
DE102009032940A1 (en) | 2009-07-14 | 2011-01-20 | Mahle International Gmbh | Piston-piston ring assembly for internal combustion engine, comprises piston top which is provided with piston ring in annular groove, where piston ring has circumferential line |
US20160017997A1 (en) * | 2014-07-17 | 2016-01-21 | Danfoss Power Solutions Inc. | Self-centering servo piston |
CN106763315A (en) * | 2017-02-23 | 2017-05-31 | 徐州徐工随车起重机有限公司 | A kind of crane reducer brake |
WO2023076043A1 (en) * | 2021-10-26 | 2023-05-04 | Sumitomo (Shi) Cryogenics Of America, Inc. | Gas energized seal for gifford-mcmahon expander |
Citations (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2410405A (en) * | 1945-01-01 | 1946-11-05 | Richard T Cornelius | Piston |
US2519683A (en) * | 1947-09-17 | 1950-08-22 | Ramsey Corp | Piston ring |
US2575214A (en) * | 1948-09-30 | 1951-11-13 | Wright Aeronautical Corp | Piston with plated piston ring grooves |
US2609260A (en) * | 1950-02-23 | 1952-09-02 | Ramsey Corp | Piston packing ring |
US2817562A (en) * | 1953-07-01 | 1957-12-24 | Gen Motors Corp | Coated piston |
US3012831A (en) * | 1957-05-03 | 1961-12-12 | Gould National Batteries Inc | Piston for internal combustion engines |
US3095204A (en) * | 1961-03-08 | 1963-06-25 | California Research Corp | Wear-resistant lining for piston-ring groove |
US3759148A (en) * | 1967-02-17 | 1973-09-18 | Sealfire | Piston and piston rings unit for an internal combustion engine |
US3806139A (en) * | 1972-03-30 | 1974-04-23 | Nippon Piston Ring Co Ltd | Piston ring |
US3917290A (en) * | 1972-11-28 | 1975-11-04 | Robert Geffroy | Assembly comprising a piston groove, a piston ring and an inertia ring sliding in a cylinder |
US3938814A (en) * | 1974-09-23 | 1976-02-17 | Koppers Company, Inc. | Bearing member having a wear resistant coating on its bearing face |
US3942808A (en) * | 1973-05-25 | 1976-03-09 | Midland-Ross Corporation | Piston ring assembly |
US4142484A (en) * | 1975-09-05 | 1979-03-06 | Daimler-Benz Aktiengesellschaft | Piston for internal combustion engine |
US4612260A (en) * | 1984-08-09 | 1986-09-16 | Nippon Piston Ring Co., Ltd. | Piston ring member |
US4735128A (en) * | 1985-02-07 | 1988-04-05 | Metal Leve S/A Industria E Comercio | Piston |
US4899702A (en) * | 1988-02-12 | 1990-02-13 | Toyota Jidosha Kabushiki Kaisha | Aluminum alloy piston and piston-ring assembly treated to suppress agglutination of the piston alloy to a piston-ring |
US5133564A (en) * | 1989-06-30 | 1992-07-28 | Goldstar Co., Ltd. | Piston ring assembly for stirling engine |
US5158052A (en) * | 1991-02-28 | 1992-10-27 | Atsugi Unisia Corporation | Aluminum alloy piston |
US5257603A (en) * | 1991-10-10 | 1993-11-02 | Mahle Gmbh | Coated piston and process for applying coating |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH206790A (en) * | 1938-03-14 | 1939-08-31 | Schuettler Paul | Process for the production of piston rings, in particular for light metal pistons of internal combustion engines. |
DE823076C (en) * | 1949-11-17 | 1951-11-29 | Ernst Mahle Dipl Ing | Piston ring made of light metal |
GB754870A (en) * | 1953-05-11 | 1956-08-15 | Gen Motors Corp | Improvements in pistons and piston rings for internal combustion engines |
GB1146835A (en) * | 1965-07-14 | 1969-03-26 | Wellworthy Ltd | Improvements in or relating to pistons |
DE1904734A1 (en) * | 1969-01-31 | 1970-08-13 | Goetzewerke | Cast iron piston ring |
US3617349A (en) * | 1969-10-20 | 1971-11-02 | Ramsey Corp | A method of making antifriction piston rings |
DE2429305A1 (en) * | 1973-06-20 | 1975-01-16 | Nippon Piston Ring Co Ltd | Sealing rings impregnated with molybdenum disulphide - sintered iron alloy first impregnated in vacuum, then under press. |
DE3801784A1 (en) * | 1988-01-22 | 1989-07-27 | Kolbenschmidt Ag | Lightweight metal piston for internal-combustion engines |
DE3814500A1 (en) * | 1988-04-29 | 1989-11-09 | Mahle Gmbh | Piston, especially for internal combustion engines |
-
1994
- 1994-03-14 US US08/213,401 patent/US5598763A/en not_active Expired - Lifetime
-
1995
- 1995-02-06 JP JP7017906A patent/JPH07269709A/en active Pending
- 1995-02-14 DE DE19504803A patent/DE19504803C2/en not_active Expired - Fee Related
- 1995-02-21 GB GB9503343A patent/GB2287520B/en not_active Expired - Fee Related
Patent Citations (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2410405A (en) * | 1945-01-01 | 1946-11-05 | Richard T Cornelius | Piston |
US2519683A (en) * | 1947-09-17 | 1950-08-22 | Ramsey Corp | Piston ring |
US2575214A (en) * | 1948-09-30 | 1951-11-13 | Wright Aeronautical Corp | Piston with plated piston ring grooves |
US2609260A (en) * | 1950-02-23 | 1952-09-02 | Ramsey Corp | Piston packing ring |
US2817562A (en) * | 1953-07-01 | 1957-12-24 | Gen Motors Corp | Coated piston |
US3012831A (en) * | 1957-05-03 | 1961-12-12 | Gould National Batteries Inc | Piston for internal combustion engines |
US3095204A (en) * | 1961-03-08 | 1963-06-25 | California Research Corp | Wear-resistant lining for piston-ring groove |
US3759148A (en) * | 1967-02-17 | 1973-09-18 | Sealfire | Piston and piston rings unit for an internal combustion engine |
US3806139A (en) * | 1972-03-30 | 1974-04-23 | Nippon Piston Ring Co Ltd | Piston ring |
US3917290A (en) * | 1972-11-28 | 1975-11-04 | Robert Geffroy | Assembly comprising a piston groove, a piston ring and an inertia ring sliding in a cylinder |
US3942808A (en) * | 1973-05-25 | 1976-03-09 | Midland-Ross Corporation | Piston ring assembly |
US3938814A (en) * | 1974-09-23 | 1976-02-17 | Koppers Company, Inc. | Bearing member having a wear resistant coating on its bearing face |
US4142484A (en) * | 1975-09-05 | 1979-03-06 | Daimler-Benz Aktiengesellschaft | Piston for internal combustion engine |
US4612260A (en) * | 1984-08-09 | 1986-09-16 | Nippon Piston Ring Co., Ltd. | Piston ring member |
US4735128A (en) * | 1985-02-07 | 1988-04-05 | Metal Leve S/A Industria E Comercio | Piston |
US4899702A (en) * | 1988-02-12 | 1990-02-13 | Toyota Jidosha Kabushiki Kaisha | Aluminum alloy piston and piston-ring assembly treated to suppress agglutination of the piston alloy to a piston-ring |
US5133564A (en) * | 1989-06-30 | 1992-07-28 | Goldstar Co., Ltd. | Piston ring assembly for stirling engine |
US5158052A (en) * | 1991-02-28 | 1992-10-27 | Atsugi Unisia Corporation | Aluminum alloy piston |
US5257603A (en) * | 1991-10-10 | 1993-11-02 | Mahle Gmbh | Coated piston and process for applying coating |
Non-Patent Citations (2)
Title |
---|
Bhushan, B. "High-Temperature Self-Lubricating Coatings and Treatments-A Review" Metal Finishing, May 1980 pp. 83-88. |
Bhushan, B. High Temperature Self Lubricating Coatings and Treatments A Review Metal Finishing, May 1980 pp. 83 88. * |
Cited By (35)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6206379B1 (en) * | 1997-03-14 | 2001-03-27 | Nippon Piston Ring Co., Ltd. | Second pressure ring for Al cylinders and its producing method |
US6131503A (en) * | 1997-12-24 | 2000-10-17 | Sanshin Kogyo Kabushiki Kaisha | Piston ring assembly |
US6338491B1 (en) * | 1998-10-21 | 2002-01-15 | Case Corporation | Rotary shaft seal |
US6161468A (en) * | 1998-12-28 | 2000-12-19 | Dana Corporation | Four-piece oil seal |
WO2000052364A1 (en) * | 1999-02-27 | 2000-09-08 | Mahle Gmbh | Piston with at least one ring groove and at least one piston ring |
US7581734B1 (en) * | 2000-05-01 | 2009-09-01 | Schlumberger Technology Corporation | Peek coated seal surfaces |
US6478003B2 (en) * | 2000-08-24 | 2002-11-12 | Avl List Gmbh | Piston for a four-stroke internal combustion engine |
US6425364B1 (en) * | 2000-11-28 | 2002-07-30 | Bombardier Motor Corporation Of America | Two-stroke direct fuel injected marine engine having anodized piston ring grooves |
US8090942B2 (en) | 2001-03-09 | 2012-01-03 | Pkware, Inc. | Method and system for asymmetrically encrypting .ZIP files |
US7077402B2 (en) * | 2002-12-18 | 2006-07-18 | Teikoku Piston Ring Co., Ltd. | Combined oil ring |
US20040119242A1 (en) * | 2002-12-18 | 2004-06-24 | Teikoku Piston Ring Co., Ltd. | Combined oil ring |
US20080127819A1 (en) * | 2004-11-30 | 2008-06-05 | Kurt Maier | Piston Ring Comprising a Coated Running Surface, and Coating Agent |
US7634963B2 (en) | 2004-11-30 | 2009-12-22 | Mable International Gmbh | Piston ring comprising a coated running surface, and coating agent |
US7963212B2 (en) * | 2007-07-19 | 2011-06-21 | Teikoku Piston Ring Co., Ltd. | Combination of a piston and a piston ring |
US20090020006A1 (en) * | 2007-07-19 | 2009-01-22 | Teikoku Piston Ring Co., Ltd. | Combination of a piston and a piston ring |
US9476454B2 (en) | 2008-12-30 | 2016-10-25 | Federal-Mogul Wiesbaden Gmbh | Sliding element |
US20110309586A1 (en) * | 2009-02-19 | 2011-12-22 | Peter-Klaus Esser | Compression piston ring |
US9458934B2 (en) * | 2009-02-19 | 2016-10-04 | Federal-Mogul Burscheid Gmbh | Compression piston ring |
US20110012313A1 (en) * | 2009-07-17 | 2011-01-20 | Gm Global Technology Operations, Inc. | Seal performance for hydrogen storage and supply systems |
US8251373B2 (en) * | 2009-07-17 | 2012-08-28 | GM Global Technology Operations LLC | Seal performance for hydrogen storage and supply systems |
US9732852B2 (en) * | 2012-09-27 | 2017-08-15 | Mahle Metal Leve S/A | Three-piece oil ring for internal combustion engines, expanding element, and annular element |
US20150240945A1 (en) * | 2012-09-27 | 2015-08-27 | Mahle Metal Leve S/A | Three-piece oil ring for internal combustion engines, expanding element, and annular element |
US10197161B2 (en) * | 2013-04-03 | 2019-02-05 | Ks Kolbenschmidt Gmbh | Machining process for trapezoid rings with small axial dimensions, used in pistons of internal combustion engines |
US20160025219A1 (en) * | 2013-04-03 | 2016-01-28 | Ks Kolbenschmidt Gmbh | Machining Process for Trapezoid Rings With Small Axial Dimensions, Used in Pistons of Internal Combustion Engines |
US20170016537A1 (en) * | 2014-03-04 | 2017-01-19 | Federal-Mogul Burscheid Gmbh | Oil scraper piston ring and method for producing an oil scraper piston ring |
US9551419B2 (en) | 2015-04-22 | 2017-01-24 | Federal-Mogul Corporation | Coated sliding element |
US10077838B2 (en) * | 2015-07-10 | 2018-09-18 | Ford Global Technologies, Llc | Piston ring configured to reduce friction |
US20170261107A1 (en) * | 2016-03-10 | 2017-09-14 | General Electric Company | Seal ring assembly for a dynamoelectric machine |
US11162591B2 (en) * | 2016-03-10 | 2021-11-02 | General Electric Company | Seal ring assembly for a dynamoelectric machine |
US20170276246A1 (en) * | 2016-03-28 | 2017-09-28 | Electro-Motive Diesel, Inc. | Piston ring set for internal combustion engine and system and method thereof |
US10359112B2 (en) * | 2016-03-28 | 2019-07-23 | Progress Rail Locomotive Inc. | Piston ring set for internal combustion engine and system and method thereof |
CN110312858A (en) * | 2017-02-16 | 2019-10-08 | 曼恩能源方案有限公司 | The cylinder of internal combustion engine |
WO2019032894A1 (en) * | 2017-08-09 | 2019-02-14 | Etagen, Inc. | Piston seal with solid lubricant applicator |
US10927953B2 (en) | 2017-08-09 | 2021-02-23 | Mainspring Energy, Inc. | Piston seal with solid lubricant applicator |
US11619303B2 (en) | 2017-08-09 | 2023-04-04 | Mainspring Energy, Inc. | Piston seal with solid lubricant applicator |
Also Published As
Publication number | Publication date |
---|---|
GB2287520B (en) | 1997-04-30 |
DE19504803C2 (en) | 1998-07-02 |
GB9503343D0 (en) | 1995-04-12 |
JPH07269709A (en) | 1995-10-20 |
GB2287520A (en) | 1995-09-20 |
DE19504803A1 (en) | 1995-09-21 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: FORD MOTOR COMPANY, MICHIGAN Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:RAO, V. DURGA NAGESWAR;YEAGER, DAVID ALAN;REEL/FRAME:006997/0619 Effective date: 19940307 |
|
STCF | Information on status: patent grant |
Free format text: PATENTED CASE |
|
FPAY | Fee payment |
Year of fee payment: 4 |
|
AS | Assignment |
Owner name: MID-AMERICA COMMERCIALIZATION CORPORATION, A CORP. Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:FORD MOTOR COMPANY;REEL/FRAME:011369/0412 Effective date: 20001031 |
|
AS | Assignment |
Owner name: FORD GLOBAL TECHNOLOGIES, INC. A MICHIGAN CORPORAT Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:FORD MOTOR COMPANY, A DELAWARE CORPORATION;REEL/FRAME:011467/0001 Effective date: 19970301 |
|
AS | Assignment |
Owner name: MID-AMERICA COMMERCIALIZATION, KANSAS Free format text: CORRECTIVE ASSIGNMENT TO CORRECT THE ASSIGNOR, PREVIOUSLY RECORDED AT REEL 011369 FRAME 0412;ASSIGNOR:FORD GLOBAL TECHNOLOGIES, INC.;REEL/FRAME:011783/0528 Effective date: 20001201 |
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Free format text: PAYER NUMBER DE-ASSIGNED (ORIGINAL EVENT CODE: RMPN); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY Free format text: PAYOR NUMBER ASSIGNED (ORIGINAL EVENT CODE: ASPN); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY |
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